<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>Geo3D - ECHARTS-GL</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
    <link rel="stylesheet" href="./common.css">
</head>
<body>
<div id="main"></div>
<script src="../node_modules/echarts/dist/echarts.js"></script>
<script src="../dist/echarts-gl.js"></script>
<script src="lib/jquery.min.js"></script>
<script src="lib/dat.gui.js"></script>
<script src="js/commonUI.js"></script>
<script>
    var chart = echarts.init(document.getElementById('main'));
    chart.showLoading();

    $.getJSON('data/buildings.json', function (buildingsGeoJSON) {

        chart.hideLoading();

        echarts.registerMap('buildings', buildingsGeoJSON);

        var regions = buildingsGeoJSON.features.map(function (feature) {
            return {
                name: feature.properties.name,
                value: Math.random(),
                height: Math.max(Math.sqrt(feature.properties.height), 0.1)
            };
        });

        chart.setOption({

            series: [{
                type: 'map3D',
                map: 'buildings',
                shading: 'hatching',

                environment: '#fff',

                hatchingMaterial: {
                    hatchingTextures: [
                        'asset/tam/hatch_0.jpg',
                        'asset/tam/hatch_1.jpg',
                        'asset/tam/hatch_2.jpg',
                        'asset/tam/hatch_3.jpg',
                        'asset/tam/hatch_4.jpg',
                        'asset/tam/hatch_5.jpg'
                    ],
                    textureTiling: [40, 20]
                },

                postEffect: {
                    enable: true,
                    screenSpaceAmbientOcclusion: {
                        enable: true,
                        radius: 8,
                        intensity: 1.2
                    },
                    edge: {
                        enable: true
                    }
                },
                groundPlane: {
                    show: false
                },
                light: {
                    main: {
                        intensity: 1,
                        shadow: true,
                        shadowQuality: 'high',
                        alpha: 30
                    },
                    ambient: {
                        intensity: 0
                    },
                    ambientCubemap: {
                        texture: 'asset/canyon.hdr',
                        exposure: 0,
                        diffuseIntensity: 0.1
                    }
                },
                viewControl: {
                    alpha: 80,
                    distance: 100,
                    minBeta: -Infinity,
                    maxBeta: Infinity
                },

                itemStyle: {
                    color: '#000'
                },

                silent: true,

                boxWidth: 200,

                regionHeight: 1,

                data: regions
            }]
        });

        var config = {
            color: '#000'
        };
        var gui = new dat.GUI();
        gui.addColor(config, 'color').onFinishChange(function () {
            chart.setOption({
                series: [{
                    itemStyle: {
                        color: config.color
                    },
                    postEffect: {
                        edge: {
                            color: config.color
                        }
                    }
                }]
            })
        });
    });
    window.addEventListener('resize', function () {
        chart.resize();
    });
</script>
</body>
</html>
